High in antioxidants (Vitamins A, C & E). Excellent source of zinc & selenium. Helps support your immune system. Crafted blend. Vitamin C + vitamins & zinc. Our Story: Developed by a former school teacher, Airborne products are a specially crafted blend designed to help support your immune system. A crafted blend you can trust. 1 Effervescent tablet = High in antioxidants (Vitamins A, C & E); Excellent source of zinc & selenium; Color from natural sources; Original herbal blend including echinacea & ginger.